Pipe-union.



No: 645,692. Patented Mar; 20, I900.

S. RICHARDSON.

FIFE umon.

(No Model.)

Witnesses. Inventnr.

. j/i/zaw,

SAMUEL RICHARDSON, or NEW YORK, N. Y.

PIPE-UNION.

SPEGIFIGATION forming partof Letters Patent No. 645,692, dated March 20, 1900.

Application filed November 14, 1.899. Serial No. 736,932. (No model.)

tion, such as will enable those skilled in the art to which it appertains to malie and use thesame.

This invention relates to that class of pipecoupling devices which are known in the trade as unions; and it has for its object to provide a simple and improved device of this character which will enable the convenient operation of a wrench and the independent turning of one section of the coupling for general convenience and facility in manipulation as desired.

In the drawings forming part of this specification the separate parts of my improvement are designated by the same numerals of reference in each'of the views, and in which Figure 1 is a side View of a coupling embodying my improvements. Fig. 2 is a longitudinal sectional view. Fig. 3 is an end view of the connecting nut or body, and Fig. 4 is a side view of the independently-revoluble member.

Referring to the drawings, 1 designates the body of the coupling, which is of ordinary nut form or contour exteriorly and is provided with a threaded bore, as at 2, of sufficiently-large area or diameter to receive the opposite coupling members 3 and 4, respectively, which are carried by said central body portion 1 and project at opposite sides of the same. The bore 2 of the body 1 is intersected at one end by a surrounding flange 5, which projects inwardly and forms a hexagonal or angular opening 6, corresponding to a hexagonal or angular or eXteriorly-nut-shaped flange or end 7, provided upon the portion of the independently-revoluble member 4 of the coupling, which projects from and beyond the body 1, which portion 7 is adapted to be engaged by a wrench in the independent turning of said member 4.

The member 3 has an angular or nut-shaped exterior outer end portion 8, adapted to be engaged by a wrench, and an exteriorly-threaded inner portion 9, which enters the threaded bore 2 of the body 1 and corresponds thereto. Said member 3 has a bore 10, which is intoriorly threaded, as at 11, for the reception and attachment of one of the pipe-sections which is to be coupled. The bore 10 of the member 3 is flared or enlarged at its inner end, as at 12, preferably in a concave form, for the purpose hereinafter described. The

independently-rotatable member 4 of the coupling has, as hereinbefore stated, an angular or nut-shaped outer end 7 and preferably embodies a somewhat-extended stem portion 13, it being provided with a longitudinal bore 14, interiorly threaded, as at 15, for the attachment of one of the sections of pipe which is to be coupled. The member 4 is provided at its inner end with a circumferential flange or enlargement 16, which is adapted to engage the inner face of the flange 5 of The operation and advantages of my invention will be readily understood.

In practice the coupling member 4 can be first inserted in connection with the central body portion 1 by passing its angular end 7 through the corresponding angular opening 6, formed by the flange 50f the body, and then inserting said member 4 up into the body 1 until its inner flange 16 comes against the inner face of the flange 5 of the body 1. The other coupling member 3 can then be screwed into the body 1 until its flared or beveled in ner edge 12 bears against the beveled face 18 of the inner flange 16 of the member 4, as is clearly illustrated -in Fig. 2. The pipe-sec tions can now be conveniently connected to the respective coupling members 3 and 4 by a simple screw connection with the respective threaded portions of the bores of said mem bers, this operation being facilitated by reason of the fact that by simply tightening or I loosening the connection between the body member 1 and the end member 3 the member 4; can be turned or revolved independently of the body member 1 or the member 3. Convenient connection and manipulation is thus enabled, and by simply turning the middle body portion 1 the coupling device may be tightened up. The angular or nut-shaped exterior contour of all three members of the coupling enables very convenient operation, and it will also be noted that the separate members of the coupling device proper are capable of easy and convenient detachment or disconnection.

Having fully described my invention, I claim as new and desire to secure by Letters Patent 1. A pipe-coupling, comprising a body or middle member having an exterior angular or nut-shaped contour and interiorly provided with a flange projecting within its bore and forming an angular or nut-shaped opening, a connection member insertible through the body member and having at one end an angular or nut-shaped exterior insertible through the opening in the flange of the body and provided at its inner end with an exterior flange adapted to bear against the inner face of the body-flange, and another connection member having athreaded engagement with the bore of said body, and the inner end thereof being adapted to form a continuous opening or passage with the other'connection member.

2. A pipe-coupling, comprising a body or middle member having an exterior angular or nut-shaped contour and interiorly provided with a flange projecting within its bore and forming an angular or nut-shaped opening, a connection member insertible through the body member andhaving at one end an angular or nut-shaped exterior insertible through the opening in the flange of the body and provided at its inner end with an exteriorflange adapted to bear against the inner face of said body-flange and having a beveled face, and anotherconnection member having a threaded engagement with the bore of said body and provided with a flaring or beveled inner end adapted to bear against the corresponding face of the inner flange of the other connec tion member.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing Witnesses, this 10th day of November, 1899.

SAMUEL RICHARDSON.

Witnesses:

F. A. STEWART, V. M. VOSLER. 

